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BVM Brunner has improved the safety of its servo-driven film-wrapping machines with control and automation products, as well as training and engineering services, from Pilz Automation Technology.

Having taken an early decision to comply with EN ISO 13849-1, BVM Brunner carried out renewed machine risk assessments in order to update the safety concepts on its machines.

Following this, the company decided to implement a new safety design for one of its machines, which incorporated comprehensive safety measures from Pilz.

BVM Brunner’s latest machine, the Compacta Genius Servo, is a fully automated machine with a continuous motion, cross-sealing jaw.

A safety measure was required for this machine, which would not only safeguard the operator, but also complement the flexibility and easy handling required for processing a variety of products for different customers.

The Pilz Safety Calculator, Pascal, was used to determine the required PL and SIL (Safety Integrity Level) of the safety functions according to EN ISO 13849-1.

The PL and SIL requirements, together with the handling requirements, were then matched with the Pilz product range within the Pascal Calculator library.

The compact configurable safety relay, Pnozmulti Mini, was selected to monitor safety functions.

Despite its compact 45mm width, the multi Mini with its 20 safe inputs and four safe semiconductor outputs (to SIL 3, PL e) covered all safety functions of the machine, including E-Stop, Light Barriers and Safety Gates.

The PC-based drag-and-drop Pnozmulti Configurator also minimised initial set up and enabled individual configuration for different customers and products.

The mechanical safety-gate switches were replaced with low-maintenance, non-contact magnetic safety switches, Psenmag, which offered high tolerances for set up and switching distance, a clearly visible status indicator and reduced engineering time due to plug in cables.

In order to maximise the productivity of packaging machines, high-quality diagnostics are needed.

Not only does Pilz offer a variety of operator displays that can convey relevant information to operators and maintenance engineers, but the company’s Pvis diagnostics technology provides plain-text messages with precise information on the location of the fault, clearly defined responsibilities, as well as an integrated display of the root cause.

This ensures that production can be restarted quickly, minimising costly downtime.

Today, most packaging machines incorporate servo and motion control technology.

The Pilz Motion Control (PMC) range covers motors, servo drives and motion controllers.

The PMCprimo Drive, for example, combines the functions of a servo amplifier, motion controller and PLC in a single unit, with the added benefit of an integrated safe-stop function.

The PMCprotego offers even more safety functionality, including safe reduced speed, safe operational stop and safe brake test.

Pilz Automation Technology

Pilz Automation technology offers a wide range of machinery safety components from PLC systems to safety sensors and servo drives, alongside their range of machinery safety consulting and engineering services and their extensive range of machinery safety training courses. Pilz has many years of experience in a variety of industries such as Food & Beverage, Packaging, Automotive, Paper and Automation, combined with the knowledge and experience of it’s machinery safety experts, Pilz is well equipped to be your machinery safety partners.

Since its formation, Pilz UK has been at the forefront of the UK machinery safety market, based in Corby, Northamptonshire since 1987, Pilz UK employs of over 35 people, many of whom are considered to be machinery and functional safety experts.
More than Machinery Safety Products
Pilz UK’s wide range of products including safety relays, PLC’s, light curtains, servo drives, gate locking systems and more are stocked and shipped from their purpose-built premises in Corby. The state of the art building is equipped with an engineering workshop to compliment the company’s safety services range including PUWER Inspections, Safety Concepts, CE Marking and Engineering. Pilz also has a dedicated training facility where courses such as the popular one day Basic Machinery Safety Course, City & Guilds 4 day Machinery Safety and the TUV accreditedCMSE (Certified Machinery Safety Expert) are delivered.
Experts in Machinery Safety
Pilz has built up expertise and a strong reputation in many industries such as print and paper, food and beverage, packaging, steel, nuclear and process, that is largely due to the in depth knowledge and competency of our staff. With over 14 members of staff having achieved CMSE qualification and an average of 22 years experience in safety and automation, our team are well equipped with knowledge on safety standards, legislation, applications and functional safety to provide our customers with practical solutions.
Pilz UK looks forward to becoming your partner in Machinery Safety and Automation

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